2-Prong Double-Adjustable Universal Clamp Subcategory_Stopwatches and Timers Class-visible 12-inch demonstration meter with

Class-visible 12-inch demonstration meter with magnetically damped moving coil and Perspex front-and-back panels

supplying the third-color short-reach line in high-current 4mm-socket bench-circuit wiring

4 inches long for chemistry and microbiology classroom stations

letting students plot resonance against length and back-calculate the speed of sound

2-Prong Double-Adjustable Universal Clamp Subcategory_Stopwatches and Timers Class-visible 12-inch demonstration meter withTwo prong double adjustable universal clamp with vinyl sleeved jaws, gripping burettes, tubes, and flask necks up to 55 mm across with independent thumbscrew adjustment.